Fireproof-wall construction



Sept. 9, 1930- R. A SUMMERS ET AL FIREPROOF WALL CONSTRUCTION Filed Oct. 22, 1928 Jami-a,

' INVNTOR BY ATTORNEY.

Patented Sept. 9, 1930 UNITED STATES PATENT OFFICE RICHARD A. SUMMERS AND SAMUEL It. SUMMERS, OF ST. LOUIS, MISSOURI, ASSIGNORS OF TWO-TWENTIETHS TO STEPHEN D. CHARPENTIER, OF AFFTON, MISSOURI FIREPROOF-WALL CONSTRUCTION Application filed October 22, 1928.

This invention relates to certain new and useful improvements in fireproof wall construction the peculiarities of which will be hereinafter fully described and claimed.

The main objects of our invention are to provide a stid, strong and efficient partition or other wall of relatively fireproof construction; secondly, to provide improved fastening means for the plates of gypsum lath mounted thereon; thirdly, to provide an improved sheet metal stud adapted for such construction; and fourthly, other features herein described and claimed.

In the accompanying drawing in which 5 like reference letters indicate corresponding arts, P Fig. 1 represents a side elevation of a part of a wall exemplifying our construction;

Fig. 2, a perspective view of our single and go double fastening means for securing gypsum lath to studs; j

8, a sectional plan on the line 33 of Fig. 1;

Fig. 4, a similar view on the line 4.-4= of Fig. 1, enlarged; Fig. 5, a similar view on the line 55 of Fig. 1;

Fig.6, a perspective view of our single fastening means made of wire;

Fig. 7, a similar view of our double fastening means made of wire;

V Fig. 8, a side elevation of a portion of a solid wall with our T-stud and end cup; and Fig. 9, a sectional plan on the line 9-9 of Referring to the drawing, the numeral 2 designates studsof sheet metal preferably, which are folded or otherwise formed in substantially H-cross section from rolled plate .40 of No. 20:0r other suitable gauge.

A convenient size is 2 width of flanges by 2 deep. Substantially half the width of the flange is double thickness and the other half is single thickness, and also the web. This 1 stud is adapted for ahollow wall with gypsum lath and plaster coats on both sides. These studs are set in end cups partly open at opposite ends andhaving a base for attaching to the floor by nails or otherwise. The vertip0 cal sides 8 are bent up from the base and part- Serial No. 313,983.

ly separated therefrom, forming free ends that are bent around the edges of adjacent flanges like clips 10, Fig. 5, and hold the studs firmly in located position. The top of said sides 8 support the first row of plates and its height, spaces the bottom edge of the plates a suitable distance from the floor to form a key space for the plaster superposed thereon. Similar cups or other means, are used at the top of the studs. Fig. 3 shows a pair of angles adapted to be nailed to the floor and engage the web.

The studs are spaced 16 or 24 centers, or otherwise adapted for the standard 4 ft. length of gypsum lath 11, or other plate, and 16 wide, which is commonly secured to the studs by screws, prongs, pins or like fastening means.

Our improved fastening means comprises a body portion 12 engaging the outer face of the adjacent lath, and having lateral arms 13 extending between the adjacent horizontal edges of gypsum lath, that are thus separated about to provide for the key of the plaster coat that is spread thereon. The ends 14: of the oppositely extending arms form clips as they are bent inward and backward over the edges of the stud flanges, and hold the said body portion against the lath and the lath against the face of the flanges.

The said body portion is preferably not as wide as the flanges, and the arms are set inward from the body portion thus forming a shoulder connection 15. substantially at right angles to the'body and of a width corresponding to the thickness of the lath, and a sharp bend like an elbow adjacent to the flange face, along which they extend in opposite directions substantially-parallel to the body to the end clips at the flange edges. This shoulder connection constitutes a gauge or spacer to form said key space. a

At the right'in Fig. l, the gypsum lath plates are shown secured to the studs by single fastenings in which the body portions 12 I engage the adjacent corners of plates that make a vertical joint on the stud, and the mid- -dleor intermediate portion-of an adjacent plate passing said stud to make joint on the next stud. This stagger of the vertical joints increases the stiffness of the wall.

At the top in Fig. 2we show a double fastener in which the pair of end clips and arms at one horizontal key space are connected to those at the next key space by a body band 16,

or otherwise, corresponding in length to the Width of the lath, and forming an extension of said body portion 12 of each pair of arms. Thisbody band is adapted to cover thevertical joint, and is also used at the middle-or intermediate portionof a 4ft. lath to secure it to an adjacent stud. This covering body band, whenoverlaid by said plaster coat, lessens any liability of a vertical crack in the V finished plaster surface, as sometimes occurs from the bulging outward of abutting edges of the lath.

When using such double fastener, the lower set of arms preferably overlie the-upper set of thefastener below, as shown at the left in Fig.1 and in the plan section Fig. 4.

Figs. 6 and 7 show the single and double fastener made of wire in position on the indicated studs, and ready for bendingthe ends of'the arms into clips on the stud flanges. In these wire fasteners, the single (Fig. 6) has the arm wires spread corresponding to the key space; inthe double, they are closer to allow two sets to lie side by side in the key space as indicated in Fig. 7. If desired, the plateform may have the arms narrowed to allow similar clamping arrangement.

Inlaying up the plates of gypsum lath, the

single fastener is clamped to the stud with the body portion engaging the lath below. Then the next row above has its lower edge slipped behind the upper part of the body portion,

and another fastener is clamped at the upper edgei In using the double fastener, the lower arms are clipped to the stud, the lath slipped behind the body band and the upper. arms clipped to' the stud. Thenthe lower arms of another fastener are clamped over the upper clips ofthe lower fasten'erjor alongside, if narrow or wire,) and so on successively.

In both single or double whether plate or wire-the arms serve as spacers to provide the key space for the plaster coat which also fixes the body portions and bands firmly against the face of thela-th.

' In making a solid wall, a T-form of stud practically one half the H-form-is preferred, anda plaster filler 6-is spread onthe back of the lath between thestuds, as well as a layer 18 on the face of the lath, as shown in Figs. 8 and 9. The end cup 17 for the T stud is practically half'of the other cup, and

the single fastener when used at the floor,I-has the lower part of its body portion cut off or bent outward to allow its arms to be clamped about the end'cup as shown, The lower arms 7 of the double fastener will also clampithe-end cup in similar manner.

zband disposed attheface o'fithe lath, .sub- 7 sta'ntially asdescribed. 5. Afireproof wall I/Ve claim: 7 I 1; A fireproof wall construction comprising combustible plate lath, a noncombustible stud of substantially H-cross section with two flanges, fastenings means for said lath to said stud, and an end cup having a baseand two side portions bent up and partly separated from the base adapted to space the first row of plates from the floor and having free ends adapted to berbent into clips to clamp said stud flanges, substantially as de-- scribed. I

2. A fireproof wall construction compris ing noncombustible studs having flanges,

and locatedbetw een and separating adjacent I edges of the lath accordingly and said arms being set inward from the body portion forming shoulders and elbows adjacent the flange, and having 'theiryends' clamped over 7 adjacent flanges, substantially "as described. 4. A-fireproof wall construction comprising noncombustible studs having flanges,

gypsum lath mounted thereon, and fastening means having a pair of stud-clamping arms of awi'dth correspon'ding'to the'usual key space and disposed between said lath at the upper and lower edges of said lathto-separate them and form av gauge for the key space and having also a connectingbody construction "compris ing studs having fl'anges lgypsum lath mounted thereon, and fastening means having a pair of stud-clamping arms of'the width corresponding to the standard key space and disposed. as a'gauge betweenthe lathat the upper and lower edges of said lath and having also a connecting body'band outside the lath having a shoulder andfelbow 7 connection with saidv arms anddisposed in the key space.

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6. A fireproof wall construction comprising studs having flanges, gypsum lath V mounted thereon, and fastening meanshavingstud-clamping arms of a width corresponding. to the standard fkey space and" forming a gauge separating horizontalrows v y space forplaster, g

substantially "as described; I

7 A fireproofiwall construction compris Bo r of said lath forming a ke ing studs having flanges, noncombustible plate lath mounted thereon in horizontal rows, and fastening means having a body portion engaging said lath and arms of a width corresponding to the standard key space to form a gauge for the lath and their .ends engaging said flanges and separating said rows of lath and forming key space for plaster.

8. A fireproof wall construction comprising studs having flanges, noncombustible plate lath mounted thereon in horizontal rows separated by key spaces, and sheet metal fastening means having a body portion engaging the face of adjacent rows of lath and having lateral arms of a Width corresponding to said key spaces and set inward in said spaces and bent to form shoulder and elbow connection respectively at right angles and parallel with the body portion and also end clips engaging the stud flanges.

9. A fireproof wall construction comprising studs, noncombustible plate lath mounted thereon in horizontal rows with staggered vertical joints, and fastening means for said lath consisting of a body portion parallel to the outer face of the lath and of a size adapted to engage both adjacent vertical edges and also the middle of the plate adj acen-t said vertical joint,said body having shoulder portions extending inward at substantially right angles to the body and adapted to space apart said horizontal rows of plates and form a key space and ending in clips engaging said flanges, substantially as described.

In testimony whereof we have affixed our signatures.

RICHARD A. SUMMERS. SAMUEL R, SUMMERS. 

